William hackney



(N0 Model.)

W. HACKNEY-8v J. W. WAILES.

GAS AND AIR PURT FOR REGENBRATIVE FURNACES. No. 340,873. Patented Apfi 27, 1886.

UNITED STATES PATENT OFFICE XVILLIAM HACKNEY, OF SWANSEA, COUNTY OF GLAMORGAN, AND- JOHN \V. VVAILES, OF \VEDNESBURY, COUNTY OF STAFFORD, ENGLAND.

GAS AND AIR PORT FOR REGENERATIVE FURNACES.

SPECIFICATION forming part of Letters Patent No. 340,873, dated April 27, 1886.

A plication filed November .2, 1885. Serial No. 181,673. (No model.) Patented in England November 9, 1882, No. 5,344.

To ctZZ whom it may concern.-

Be it known that we, WILLIAM HACKNEY, residing at Swansea, in the county of Glamorgan, Wales, and JOHN WILLIAM WAILEs, re-' 5 siding at Vednesbury, in the county of Stafl ford, England, subjects of the Queen of Great Britain, have invented a new and useful Improvement in Gas and Air Ports for Regenerative Furnaces, (for which we have obtained I Letters Patent in Great Britain,No. 5,344, No-

vember 9, 1882, and nowhere else,) of which the following is a specification. 7

Our invention relates to furnaces in which gaseous fuel is used,and in which regenerators x are employed to heat the said fuel and the air for supporting combustion. The hearth or melting-chamber and contiguous parts are of the Siemens or other known construction, or are constructed as hereinafter shown. The

regenerators are of any suitable form, and the gaseous fuel is obtained from producers or otherwise, as found convenient.

Hitherto the passages or flues, connecting the regenerators and the hearth have been constructed as fixed structures, which had to be torn down and rebuilt when defective, which necessitated the temporary shutting down of the furnace; or, where constructed as detachable parts of the furnace, they have been formed of sectional bricks or tiles bound together by iron bars, bolls, &c.an expensive construc tion, and one which necessitated the entire re construction of the individual section or part when the same became defective at any point.

3 5 Moreover, in such detachable constructions the air and gas flues have been united before reaching the hearth, so that combustion took place within the mouth of the fine, and not in the working-chamber or hearth proper, whereby the fines were rapidly destroyed and much of the value of the fuel lost.

Among other disadvantages arising from the above construction are that the furnaces and regenerators are expensive in construction 4 5 and maintenance, costly and difficult to repair, and are not readily applicable for use with basic linings, nor as open-hearth steel-melting furnaces.

The object of our invention is so to construct and combine furnaces and regenerators that the above disadvantages are avoided. For that purpose we proceed as follows: First, we construct furnaces and regenerators separate from each other and connect them together by independent detachable pipes or flues, which are formed of plate, sheet, or cast iron, or of other like material lined with any suitable substance capable of resisting the action of fire and acting as a non-conductor of heat; second, we also construct an open-hearth regenerative 6o steel-making furnace of basic bricks or lined with basic material, such basic material extending to the independent or detachable pipes or flues mentioned, and we make the lining of the said pipes or flues so thin that its rapid melting where it joins the basic material is prevented by the cooling action of the air in contact with the external surface of the said pipes or fines.

In the drawings, Figures 1 and 2 are vcrtical sections at "the lines A A B B, and Fig. 3 a plan, all of a regenerative gas-furnace for open-hearth steel-melting constructed in accordance with our invention.

A A are the air-regenerator chambers; B B, the air passages orflues from the regeneratorchambers to the combustion or melting chamber. C C are the ports or openings through which the air is introduced into the combustion or" melting chamber. D D are the regencrater-chambers; E E, the gas passages or lines from the regenerator-chambers to the combustion or melting chamber; F F, ports or open ings through which the gas enters the combustion or melting chamber. G is the fire-resisting non-conducting lining of the passages or lines 0 O E E. H is the basic lining of the combustion chamber or furnace; I, charging doors; J, tapping-hole through which the molten metal is drawn off; K, joints between the gas and air passages or fines and the regenen ators; L, joints between the'gas and air pas sages or fines and furnace; M, intermediate joints. The said joints are buttjoints, as shown; or flange, socket, or other suitable readilyseparated joint may be used. The ends of the passages or fines are preferably lined with fire-bricks, and the said bricks project som distance from the ends of the pipes or fines where they are connected to the furnace, so that the casing may not be too much exposed to the action of heat near the said furnace. The other parts of the passages or fines may be lined with loam. The lining is conveniently effected by ramming in the loam round awooden core,which is afterward Withdrawn.

The horizontal joints K are conveniently made tight by means of a layer of sand, and the vertical joint M by ramming clay into and around the said joints.

The air-pipes B B and gas-pipes E E are not only detachable from the furnace and regenerators, but are also entirely separate and independent each of the other, and deliver into the furnace at different points, as at F F (gas) and O 0, (air,) so as to produce the greatest heat within the combustion-chamber on the surface of the metal. This arrangement also conduces materially to the durability of the furnace and the pipes or fines.

The air pipes or fines may be either directly behind the gas-pipes, or they may be set alternately with them, or arranged in any other convenient manner.

The air or gas passages or fines may be more or less numerous than the corresponding ports for admitting the gas and air into the combustion or melting chamber of the furnace.

The gas and air passages or fines may be held up against the ends of the combustion chamber or furnace in any convenient manner, and they may be supported and held in position by means of tie-rods or in any other suitable way.

TV hat we claim as our invention is- 1. In combination with separately constructed furnace and regenerators, detachable air-flues and gas-fines, which connect the furnace and regenerators, said flues being separate and independent one from the other, and delivering into the furnace at different points, substantially as and for the purposes specified.

2. The combination, with an open-hearth regenerative furnace having a basic lining which extends to the gas and air fines, of independent or detachable pipes or flues having a refractory lining of reduced thickness at its juncture with the basic lining of the hearth, substantially as and for the purposes specified.

\VILLIAM HACKNEY. J. WV. \VAILES.

\Vitnesses to the si gnatn re of \Villiam Hack- ,1

ney:

XVILM. PENRosE, RIoHD. XV. BEOR, Jr., 8017:, Swansea. Vitnesses to the signature of John Villiam Vailes;

G. E. IVIATHEWS,

S011. and N02. Pub, Birmm. JOHN A. DARBY,

His Clerk. 

